OK

THE DRUMS ARE PERFECT WITH NO GROOVES OR LIPS!!!

I know you guys are trying to help but you guys seem to be missing that I had a good pedal BUT NO BRAKING POWER at all. It feels as if they are wet, thats what it seems likes. YES I CLEANED THE BRAKES. The fronts have probably 90% on them and also the rotors on them are good and not covered in grease.

Im not worried about the pedal, im worried about how the DRIVER SIDE REAR wheel cylinder has gone out twice. I dont get that. Im also worried that I have good pedal but not  very good braking. I do not understand these issues

Were your drums and rotors machined? If not that may be the problem with how they felt. Often times even though the surfaces look flat and smooth they are not.  If so, then the nice flat surface of the shoes and pads don't fully contact over their entire surface and will minimze braking effectiveness until they have fully seated. Even new ones or freshly machined ones don't stop so great at first until they've been properly seated.

But first, find out what the leak is then maybe consider machining at least the fronts since they do most of your stopping and it may keep them from getting noisy as well.

  1) When you take the drum off, would it be possible to take a pic and post it?

  2) P.S. aren't there two drum sizes for toy rear axles?

   1) yes, please do... and take pics of the shoes in the drum (off the truck, of course)

  2)  I believe the difference may be between 2wd and 4wd also the V6 ones are larger yet.  Not sure if a larger one will fit completely since it may not engage the backing  plate without hitting, Just a guess though...